List of top Physics Questions on Electromagnetism asked in IPU CET

A cyclotron is operating at a frequency of 12 MHz. Mass and charge of deuteron are \( 3.3 \times 10^{-27} \, {kg} \) and \( 1.9 \times 10^{-19} \, {C} \). To accelerate deuteron, the necessary magnetic field is
The diagrams show three circuits with identical batteries, identical inductors, and identical resistors. Rank them according to the current through the battery just after the switch is closed from least to greatest.
A coil in the shape of an equilateral triangle of side \( l \) is suspended between two pole pieces of a permanent magnet, such that the magnetic field, \( B \), is in the plane of the coil. If due to a current \( I \) in the triangle, a torque \( \tau \) acts on it, the side \( l \) of the triangle is
A positive charge enters a magnetic field and travels parallel to but opposite the field. The charge feels or experiences

A wire of arbitrary shape carries a current $ I = 2A $. Consider the portion of wire between $ (0, 0, 0) $ and $ (4, 4, 4) $. A magnetic field given by $ B = \left( 1.2 \times 10^{-4} + 2 \times 10^{-4} \right) \, \hat{k} $ exists in the region. The force acting on the given portion of the wire is:

 

A transformer having efficiency of 90% is working on 200 V and 3 kW power supply. If the current in the secondary coil is 6 A the voltage across the secondary coil and the current in the primary coil respectively are